/* ===== 品牌故事页 / page-about ===== */

.page-about {
  --about-rail: 212px;
  --about-gutter: clamp(26px, 4vw, 68px);
  --about-anchor: clamp(24px, 3vw, 40px);
  background: var(--paper);
  color: var(--rock);
}

/* ---------- 首屏 ---------- */
.page-about .about-hero {
  position: relative;
  background: var(--ink);
  padding-top: clamp(20px, 3.2vw, 34px);
  overflow: hidden;
}

.page-about .about-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    repeating-linear-gradient(90deg, var(--grid-dark) 0 1px, transparent 1px 72px),
    repeating-linear-gradient(0deg, var(--grid-dark) 0 1px, transparent 1px 72px);
  z-index: 0;
  pointer-events: none;
}

.page-about .about-hero::after {
  content: "";
  position: absolute;
  right: 0;
  bottom: 0;
  width: min(56%, 700px);
  height: clamp(76px, 13vw, 172px);
  background: var(--apricot);
  clip-path: polygon(100% 0, 100% 100%, 0 100%);
  z-index: 3;
  opacity: .94;
  pointer-events: none;
}

.page-about .about-hero__inner {
  position: relative;
  z-index: 2;
  padding-bottom: clamp(26px, 4vw, 46px);
}

.page-about .about-hero__crumbs ol {
  margin: 0;
  padding: 0;
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  font-size: 12px;
  letter-spacing: .12em;
}

.page-about .about-hero__crumbs a {
  color: var(--pitch);
  text-decoration: none;
}

.page-about .about-hero__crumbs a:hover {
  color: var(--apricot);
}

.page-about .about-hero__crumbs [aria-current="page"] {
  color: rgba(246, 241, 230, .68);
}

.page-about .about-hero__eyebrow {
  margin: clamp(18px, 2.6vw, 30px) 0 0;
  color: var(--apricot);
}

.page-about .about-hero__title {
  margin: clamp(10px, 1.8vw, 18px) 0 0;
  max-width: 17ch;
  font-size: clamp(34px, 5.6vw, 72px);
  line-height: 1.06;
  font-weight: 900;
  letter-spacing: -.02em;
  color: var(--warm);
}

.page-about .about-hero__lede {
  margin: clamp(16px, 2.2vw, 24px) 0 0;
  max-width: 60ch;
  font-size: clamp(16px, 1.4vw, 18px);
  line-height: 1.8;
  color: rgba(246, 241, 230, .86);
}

.page-about .about-hero__facts {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px 22px;
  margin: clamp(22px, 3.4vw, 36px) 0 0;
  padding: clamp(18px, 2.4vw, 24px) 0 0;
  max-width: 760px;
  list-style: none;
  border-top: 1px solid var(--line-dark);
}

.page-about .about-hero__facts li {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.page-about .about-hero__facts .num {
  font-family: var(--font-num);
  font-size: clamp(32px, 4.4vw, 46px);
  font-weight: 700;
  line-height: 1;
  letter-spacing: .01em;
  color: var(--apricot);
}

.page-about .about-hero__facts li > span:last-child {
  font-size: 12px;
  letter-spacing: .1em;
  color: rgba(246, 241, 230, .7);
}

.page-about .about-hero__figure {
  position: relative;
  z-index: 1;
  margin: 0;
  border-top: 1px solid var(--line-dark);
}

.page-about .about-hero__figure img {
  display: block;
  width: 100%;
  height: clamp(200px, 33vw, 420px);
  object-fit: cover;
  filter: saturate(.85);
}

.page-about .about-hero__figure figcaption {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  padding: 16px var(--pad) 14px;
  font-size: 13px;
  line-height: 1.6;
  color: rgba(246, 241, 230, .88);
  background: linear-gradient(to top, rgba(15, 59, 46, .9), rgba(15, 59, 46, 0));
}

/* ---------- 主体栅格 ---------- */
.page-about .about-body {
  padding: clamp(42px, 7vw, 96px) 0 clamp(46px, 8vw, 108px);
}

.page-about .about-body__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(26px, 4vw, 52px);
}

/* ---------- 章节索引 ---------- */
.page-about .about-index__label {
  margin: 0 0 12px;
  color: var(--moss);
}

.page-about .about-index__list {
  display: flex;
  gap: 6px;
  margin: 0;
  padding: 0 0 10px;
  list-style: none;
  overflow-x: auto;
  scrollbar-width: thin;
}

.page-about .about-index__link {
  display: flex;
  align-items: baseline;
  gap: 8px;
  padding: 9px 13px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--warm);
  color: var(--rock);
  text-decoration: none;
  white-space: nowrap;
  transition: border-color .18s ease, background-color .18s ease, color .18s ease;
}

.page-about .about-index__no {
  font-family: var(--font-num);
  font-size: 16px;
  font-weight: 700;
  color: var(--moss);
  transition: color .18s ease;
}

.page-about .about-index__name {
  font-size: 13px;
  letter-spacing: .04em;
}

.page-about .about-index__link:hover {
  border-color: var(--apricot);
  color: var(--ink);
}

.page-about .about-index__link:focus-visible {
  outline: 2px solid var(--apricot);
  outline-offset: 2px;
}

.page-about .about-index__link[aria-current="true"] {
  background: var(--ink);
  border-color: var(--ink);
  color: var(--warm);
}

.page-about .about-index__link[aria-current="true"] .about-index__no {
  color: var(--apricot);
}

/* ---------- 章节流 ---------- */
.page-about .about-stream {
  display: flex;
  flex-direction: column;
  min-width: 0;
}

.page-about .about-chapter {
  padding-bottom: clamp(34px, 5.5vw, 72px);
  margin-bottom: clamp(34px, 5.5vw, 72px);
  border-bottom: 1px solid var(--line);
  scroll-margin-top: calc(var(--header-h-sm) + 26px);
}

.page-about .about-chapter:last-child {
  margin-bottom: 0;
  padding-bottom: 0;
  border-bottom: 0;
}

.page-about .about-chapter__head {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 6px 20px;
  align-items: start;
  margin-bottom: clamp(16px, 2.4vw, 26px);
}

.page-about .about-chapter__index {
  grid-row: span 2;
  font-family: var(--font-num);
  font-size: clamp(34px, 4.6vw, 56px);
  font-weight: 700;
  line-height: 1;
  letter-spacing: .02em;
  color: transparent;
  -webkit-text-stroke: 1.2px var(--line);
}

.page-about .about-chapter__title {
  margin: 0;
  color: var(--ink);
  letter-spacing: -.01em;
}

.page-about .about-chapter__meta {
  grid-column: 2;
  margin: 0;
  font-size: 12px;
  letter-spacing: .14em;
  color: var(--moss);
}

.page-about .about-chapter__body {
  max-width: 68ch;
}

.page-about .about-chapter__body p {
  margin: 0 0 1em;
}

.page-about .about-chapter__body p:last-child {
  margin-bottom: 0;
}

.page-about .about-lead {
  font-size: clamp(17px, 1.5vw, 19px);
  line-height: 1.8;
  color: var(--ink);
  font-weight: 500;
}

.page-about .about-note {
  max-width: 68ch;
  margin: clamp(20px, 2.6vw, 28px) 0 0;
  padding: 14px 18px;
  border-left: 3px solid var(--pitch);
  background: var(--warm);
  font-size: 14px;
  line-height: 1.75;
  color: var(--ink);
}

/* ---------- 通用图块 ---------- */
.page-about .about-figure {
  margin: clamp(22px, 3vw, 34px) 0 0;
}

.page-about .about-figure .media {
  margin: 0;
}

.page-about .about-figure img {
  max-width: 100%;
  height: auto;
  object-fit: cover;
}

.page-about .about-figure .media-caption {
  display: block;
  margin-top: 10px;
  font-size: 13px;
  line-height: 1.65;
  color: var(--moss);
}

/* ---------- 02 时间带 ---------- */
.page-about .about-timeline {
  display: grid;
  grid-auto-flow: column;
  grid-auto-columns: minmax(228px, 1fr);
  gap: 22px;
  margin: clamp(20px, 3vw, 30px) 0 0;
  padding: 20px 4px 10px;
  list-style: none;
  overflow-x: auto;
  scrollbar-width: thin;
}

.page-about .about-timeline__node {
  position: relative;
  padding-top: 20px;
}

.page-about .about-timeline__node::before {
  content: "";
  position: absolute;
  top: 5px;
  left: 0;
  right: -22px;
  height: 1px;
  background: var(--line);
}

.page-about .about-timeline__node:last-child::before {
  right: 0;
}

.page-about .about-timeline__node::after {
  content: "";
  position: absolute;
  top: 1px;
  left: 0;
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--apricot);
  border: 2px solid var(--paper);
}

.page-about .about-timeline__year {
  display: block;
  font-family: var(--font-num);
  font-size: clamp(28px, 3.2vw, 38px);
  font-weight: 700;
  line-height: 1;
  letter-spacing: .02em;
  color: var(--ink);
}

.page-about .about-timeline__title {
  margin: 8px 0 4px;
  font-size: 16px;
  font-weight: 700;
  color: var(--ink);
}

.page-about .about-timeline__copy {
  margin: 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--rock);
}

/* ---------- 03 团队 ---------- */
.page-about .about-team {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
  margin: clamp(20px, 3vw, 30px) 0 0;
  padding: 0;
  list-style: none;
}

.page-about .about-team__item {
  position: relative;
  padding: 22px 20px 24px;
  background: var(--warm);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  transition: transform .2s ease, border-color .2s ease, box-shadow .2s ease;
}

.page-about .about-team__item:hover,
.page-about .about-team__item:focus-within {
  transform: translateY(-2px);
  border-color: var(--apricot);
  box-shadow: var(--shadow-1);
}

.page-about .about-team__item--data { border-top: 3px solid var(--moss); }
.page-about .about-team__item--edit { border-top: 3px solid var(--apricot); }
.page-about .about-team__item--design { border-top: 3px solid var(--clay); }

.page-about .about-team__role {
  margin: 0;
  font-size: 12px;
  letter-spacing: .16em;
  color: var(--moss);
}

.page-about .about-team__count {
  display: flex;
  align-items: baseline;
  gap: 6px;
  margin: 6px 0 10px;
}

.page-about .about-team__count .num {
  font-family: var(--font-num);
  font-size: clamp(40px, 5vw, 54px);
  font-weight: 700;
  line-height: 1;
  color: var(--ink);
}

.page-about .about-team__count span:last-child {
  font-size: 14px;
  color: var(--rock);
}

.page-about .about-team__desc {
  margin: 0 0 12px;
  font-size: 15px;
  line-height: 1.75;
  color: var(--ink);
}

.page-about .about-team__duties {
  display: grid;
  gap: 6px;
  margin: 0;
  padding: 12px 0 0;
  list-style: none;
  border-top: 1px dashed var(--line);
}

.page-about .about-team__duties li {
  position: relative;
  padding-left: 15px;
  font-size: 13.5px;
  line-height: 1.7;
  color: var(--rock);
}

.page-about .about-team__duties li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .72em;
  width: 7px;
  height: 1px;
  background: var(--apricot);
}

/* ---------- 04 流程 ---------- */
.page-about .about-steps {
  display: grid;
  gap: 0;
  margin: clamp(20px, 3vw, 30px) 0 0;
  padding: 0;
  list-style: none;
  counter-reset: step;
}

.page-about .about-steps__item {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 16px;
  padding: 18px 0;
  border-top: 1px solid var(--line);
}

.page-about .about-steps__item:last-child {
  border-bottom: 1px solid var(--line);
}

.page-about .about-steps__no {
  font-family: var(--font-num);
  font-size: clamp(24px, 2.6vw, 32px);
  font-weight: 700;
  line-height: 1.1;
  color: var(--line);
  letter-spacing: .02em;
}

.page-about .about-steps__title {
  margin: 0 0 4px;
  font-size: 17px;
  font-weight: 700;
  color: var(--ink);
}

.page-about .about-steps__copy {
  margin: 0;
  max-width: 62ch;
  font-size: 15px;
  line-height: 1.75;
  color: var(--rock);
}

/* ---------- 05 合作伙伴 ---------- */
.page-about .about-partners {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
  margin: clamp(20px, 3vw, 30px) 0 0;
  padding: 0;
  list-style: none;
}

.page-about .about-partners__item {
  padding: 22px 20px 20px;
  background: var(--paper);
  border: 1px solid var(--line);
  border-left: 4px solid var(--moss);
  border-radius: var(--radius);
}

.page-about .about-partners__item:last-child {
  border-left-color: var(--clay);
}

.page-about .about-partners__count {
  display: block;
  font-family: var(--font-num);
  font-size: clamp(36px, 4.4vw, 48px);
  font-weight: 700;
  line-height: 1;
  color: var(--ink);
}

.page-about .about-partners__title {
  margin: 8px 0 6px;
  font-size: 17px;
  font-weight: 700;
  color: var(--ink);
}

.page-about .about-partners__copy {
  margin: 0 0 14px;
  font-size: 15px;
  line-height: 1.75;
  color: var(--rock);
}

.page-about .about-partners__link {
  display: inline-block;
  font-size: 14px;
  color: var(--ink);
  text-decoration: none;
  border-bottom: 2px solid var(--apricot);
  padding-bottom: 2px;
  transition: color .18s ease, border-color .18s ease;
}

.page-about .about-partners__link:hover {
  color: var(--apricot-deep);
}

.page-about .about-partners__link:focus-visible {
  outline: 2px solid var(--apricot);
  outline-offset: 3px;
}

/* ---------- 订阅组件 ---------- */
.page-about .about-subscribe {
  position: relative;
  padding: clamp(38px, 6vw, 76px) 0;
  background: var(--ink);
  color: var(--warm);
  overflow: hidden;
}

.page-about .about-subscribe::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    repeating-linear-gradient(90deg, var(--grid-dark) 0 1px, transparent 1px 72px),
    radial-gradient(circle at 88% 12%, rgba(240, 138, 36, .22), transparent 58%);
  pointer-events: none;
}

.page-about .about-subscribe__inner {
  position: relative;
  z-index: 1;
  display: grid;
  gap: clamp(14px, 1.8vw, 20px);
  max-width: 820px;
}

.page-about .about-subscribe__eyebrow {
  margin: 0;
  color: var(--apricot);
}

.page-about .about-subscribe__title {
  margin: 0;
  font-size: clamp(24px, 3.4vw, 38px);
  font-weight: 900;
  line-height: 1.2;
  letter-spacing: -.01em;
  color: var(--warm);
}

.page-about .about-subscribe__copy {
  margin: 0;
  font-size: 16px;
  line-height: 1.8;
  color: rgba(246, 241, 230, .84);
}

.page-about .about-subscribe__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.page-about .about-subscribe__actions .btn-ghost {
  border-color: rgba(246, 241, 230, .44);
  color: var(--warm);
}

.page-about .about-subscribe__actions .btn-ghost:hover {
  border-color: var(--apricot);
  color: var(--apricot);
}

.page-about .about-subscribe__actions .btn:focus-visible {
  outline: 2px solid var(--apricot);
  outline-offset: 3px;
}

.page-about .about-subscribe__note {
  margin: 0;
  font-size: 13px;
  line-height: 1.7;
  color: rgba(246, 241, 230, .68);
}

/* ---------- 下一步 ---------- */
.page-about .about-next {
  padding: clamp(34px, 5vw, 60px) 0 clamp(44px, 7vw, 88px);
}

.page-about .about-next__title {
  margin: 0;
  font-size: clamp(20px, 2.2vw, 26px);
  font-weight: 700;
  color: var(--ink);
}

.page-about .about-next__list {
  display: grid;
  gap: 10px;
  margin: clamp(14px, 2vw, 20px) 0 0;
  padding: 0;
  list-style: none;
}

.page-about .about-next__link {
  display: block;
  padding: 16px 18px;
  background: var(--warm);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  color: var(--ink);
  font-size: 15px;
  line-height: 1.6;
  text-decoration: none;
  transition: border-color .18s ease, transform .18s ease, background-color .18s ease;
}

.page-about .about-next__link:hover {
  border-color: var(--apricot);
  background: var(--paper);
  transform: translateY(-2px);
}

.page-about .about-next__link:focus-visible {
  outline: 2px solid var(--apricot);
  outline-offset: 2px;
}

/* ---------- 桌面布局 ---------- */
@media (min-width: 760px) {
  .page-about .about-hero__facts {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-about .about-team {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 20px;
    align-items: start;
  }

  .page-about .about-team__item--edit {
    margin-top: 34px;
  }

  .page-about .about-team__item--design {
    margin-top: 68px;
  }

  .page-about .about-partners {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 20px;
  }

  .page-about .about-next__list {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 14px;
  }
}

@media (min-width: 980px) {
  .page-about .about-body__grid {
    grid-template-columns: var(--about-rail) minmax(0, 1fr);
    gap: var(--about-gutter);
  }

  .page-about .about-index {
    position: sticky;
    top: calc(var(--header-h-sm) + 28px);
    align-self: start;
  }

  .page-about .about-index__list {
    flex-direction: column;
    gap: 0;
    padding: 0;
    overflow: visible;
    border-left: 1px solid var(--line);
  }

  .page-about .about-index__link {
    position: relative;
    padding: 13px 10px 13px 18px;
    border: 0;
    border-radius: 0;
    background: transparent;
    color: var(--rock);
    white-space: normal;
  }

  .page-about .about-index__link::before {
    content: "";
    position: absolute;
    left: -4px;
    top: 50%;
    width: 7px;
    height: 7px;
    border-radius: 50%;
    background: var(--line);
    transform: translateY(-50%);
    transition: background-color .18s ease, transform .18s ease;
  }

  .page-about .about-index__link:hover {
    background: transparent;
    color: var(--ink);
  }

  .page-about .about-index__link[aria-current="true"] {
    background: transparent;
    border-color: transparent;
    color: var(--ink);
  }

  .page-about .about-index__link[aria-current="true"]::before {
    background: var(--apricot);
    transform: translateY(-50%) scale(1.55);
  }

  .page-about .about-chapter__head {
    gap: 8px 28px;
  }

  .page-about .about-timeline {
    grid-auto-columns: minmax(0, 1fr);
    overflow: visible;
  }

  .page-about .about-subscribe__inner {
    grid-template-columns: minmax(0, 1fr);
    padding-left: 24px;
    border-left: 3px solid var(--apricot);
  }
}

/* ---------- 动效收敛 ---------- */
@media (prefers-reduced-motion: reduce) {
  .page-about .about-team__item,
  .page-about .about-next__link,
  .page-about .about-index__link,
  .page-about .about-partners__link {
    transition: none;
  }

  .page-about .about-team__item:hover,
  .page-about .about-next__link:hover {
    transform: none;
  }
}